+++ /dev/null
-/* LibTomCrypt, modular cryptographic library -- Tom St Denis
- *
- * LibTomCrypt is a library that provides various cryptographic
- * algorithms in a highly modular and flexible manner.
- *
- * The library is free for all purposes without any express
- * guarantee it works.
- */
-#include "tomcrypt.h"
-
-/**
- @file f9_process.c
- f9 Support, process blocks with f9
-*/
-
-#ifdef LTC_F9_MODE
-
-/** Process data through f9-MAC
- @param f9 The f9-MAC state
- @param in Input data to process
- @param inlen Length of input in octets
- Return CRYPT_OK on success
-*/
-int f9_process(f9_state *f9, const unsigned char *in, unsigned long inlen)
-{
- int err, x;
-
- LTC_ARGCHK(f9 != NULL);
- LTC_ARGCHK(in != NULL);
-
- /* check structure */
- if ((err = cipher_is_valid(f9->cipher)) != CRYPT_OK) {
- return err;
- }
-
- if ((f9->blocksize > cipher_descriptor[f9->cipher].block_length) || (f9->blocksize < 0) ||
- (f9->buflen > f9->blocksize) || (f9->buflen < 0)) {
- return CRYPT_INVALID_ARG;
- }
-
-#ifdef LTC_FAST
- if (f9->buflen == 0) {
- while (inlen >= (unsigned long)f9->blocksize) {
- for (x = 0; x < f9->blocksize; x += sizeof(LTC_FAST_TYPE)) {
- *(LTC_FAST_TYPE_PTR_CAST(&(f9->IV[x]))) ^= *(LTC_FAST_TYPE_PTR_CAST(&(in[x])));
- }
- cipher_descriptor[f9->cipher].ecb_encrypt(f9->IV, f9->IV, &f9->key);
- for (x = 0; x < f9->blocksize; x += sizeof(LTC_FAST_TYPE)) {
- *(LTC_FAST_TYPE_PTR_CAST(&(f9->ACC[x]))) ^= *(LTC_FAST_TYPE_PTR_CAST(&(f9->IV[x])));
- }
- in += f9->blocksize;
- inlen -= f9->blocksize;
- }
- }
-#endif
-
- while (inlen) {
- if (f9->buflen == f9->blocksize) {
- cipher_descriptor[f9->cipher].ecb_encrypt(f9->IV, f9->IV, &f9->key);
- for (x = 0; x < f9->blocksize; x++) {
- f9->ACC[x] ^= f9->IV[x];
- }
- f9->buflen = 0;
- }
- f9->IV[f9->buflen++] ^= *in++;
- --inlen;
- }
- return CRYPT_OK;
-}
-
-#endif
-
-/* ref: $Format:%D$ */
-/* git commit: $Format:%H$ */
-/* commit time: $Format:%ai$ */
-